package advance.app.interceptor;

import org.springframework.lang.Nullable;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author : fafa
 * @version V1.0
 * @Project: demo
 * @Package advance.app.interceptor
 * @Description:
 * @date Date : 2019年11月19日 09:35
 */
@Component
public class AdminLoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
        String uri = request.getRequestURI();
        if (uri.contains("admin") && null == request.getSession().getAttribute("loginUser")) {
            request.getSession().setAttribute("errorMsg", "请重新登陆");
            response.sendRedirect(request.getContextPath() + "/login");
            return false;
        } else {
            request.getSession().removeAttribute("errorMsg");
            return true;
        }
    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable ModelAndView modelAndView) throws Exception {

    }
}
